Hello !
Does anyone have experience with the "Siemens Magnetom Trio" 3T MRI
and its behavior in
DTI sequences?
We suffer from a poor-signal-artifact in the mid-parietal area that:
- occurs only in the directions of x far from 0 (x=0.75 to 1 and
x=-0.75 to -1)
in our 30direction sequence this is always the directions 6, 14, 15
22, 28,29,30
- occurs in an uncontrollable manner in 75%, dependent on subject,
TR/TE and head
fixation.
That means we havn't found one single reason.
See attached example, please
Help! Does anyone know that sort of artifact in a Siemens Magnetom Trio?
Does anyone know why it is allways and only the x-gradient?
Does anyone know what to do against?
Thanks a lot in advance!
Markus
--
Dr. med. Markus Gschwind, M.D.
Laboratory for Neurology and Imaging of Cognition
Dept of Neurosciences
University Medical Center (CMU)
1 Michel-Servet - 1211 GENEVA - CH
Tel 0041 (0) 22 379 5324
Fax 0041 (0) 22 379 5402
email: [log in to unmask]
http://labnic.unige.ch
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